Download Garmin Software Version 0464.05 Pilot's Guide

FLIGHT INSTRUMENTS
BAROMETRIC MINIMUM DESCENT ALTITUDE
For altitude awareness, a barometric minimum descent altitude (MDA, or decision height, DH) can be set
in the Timer/References Window. When active, the MDA is displayed in a window labeled ‘BARO MIN’ to the
lower left of the Altimeter and on the altitude tape with a bug (once the altitude is within the range of the tape).
This altitude can be adjusted in the ‘Baro Min’ field in the Timer/References Window (Figure 2-37) from zero to
16,000 feet (in 10-ft increments with the small FMS Knob). The MDA is reset any time the power is cycled.
Setting the barometric minimum descent altitude and bug:
1) Press the TMR/REF Softkey.
2) Turn the large FMS Knob to highlight the ‘Baro Min’ field (Figure 2-37).
3) Use the small FMS Knob to enter the desired altitude (in 10-ft increments from zero to 16,000 feet) and press
the ENT Key.
4) In the highlighted ON/OFF field, turn the small FMS Knob clockwise to ON or counterclockwise to OFF.
5) To remove the window, press the CLR Key or the TMR/REF Softkey.
Figure 2-37 Barometric Minimum Descent Altitude
Visual annunciations alert the pilot when approaching the MDA (Figure 2-38):
• When the aircraft altitude descends to within 2500 feet of the MDA setting, the ‘BARO MIN’ Window appears
with the altitude in light blue text. Once in range, the bug appears on the tape in light blue.
• When the aircraft passes through 100 feet of the MDA, the bug and text turn white.
• Once the aircraft descends past the MDA, the bug and text turn yellow and the aural alert, “Minimums
Minimums”, is generated.
Alerting is inhibited while the aircraft is on the ground and until the aircraft reaches 150 feet above the MDA.
If the aircraft proceeds to climb after having reached the MDA, once it reaches 50 feet above the MDA, alerting
is disabled.
Within 2500 ft
Within 100 ft
Altitude Reached
Barometric
Minimum Bug
Barometric
Minimum Box
Figure 2-38 Barometric Minimum Descent Altitude Alerting Visual Annunciations
190-00595-00 Rev. A
Garmin G1000 Pilot’s Guide for the Beechcraft A36/G36
2-25